CVE-2018-20452 — Improper Restriction of Operations within the Bounds of a Memory Buffer in Project Libxls

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer4 documents4 sources

Severity

8.8HIGHNVD

EPSS

0.4%

top 39.18%

CISA KEV

Not in KEV

Exploit

No known exploits

Affected products

Debian R-cran-readxl Libxls Project Libxls

Timeline

PublishedDec 25

Latest updateMay 13

Description

The read_MSAT_body function in ole.c in libxls 1.4.0 has an invalid free that allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted file, because of inconsistent memory management (new versus free) in ole2_read_header in ole.c.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages2 packages

▶NVDlibxls_project/libxls1.4.0

▶debiandebian/r-cran-readxl< r-cran-readxl 1.2.0.9000-1 (bookworm)

🔴Vulnerability Details

GHSA

GHSA-3hq6-4m9g-pfg4: The read_MSAT_body function in ole↗2022-05-13

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OSV

CVE-2018-20452: The read_MSAT_body function in ole↗2018-12-25

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📋Vendor Advisories

Debian

CVE-2018-20452: r-cran-readxl - The read_MSAT_body function in ole.c in libxls 1.4.0 has an invalid free that al...↗2018

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